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Class which supports an async version of the `apply()` builtin
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c C sw t } xj t t t | j ƒ ƒ ƒ D]M } | j | } | j d k r" t d | ƒ | j ƒ t } | j | =q" q" W| S( s Cleanup after any worker processes which have exited due to reaching
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Equivalent of `apply()` builtin
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Equivalent of `map()` builtin
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Equivalent of `itertools.imap()` -- can be MUCH slower than `Pool.map()`
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Like `imap()` method but ordering of results is arbitrary
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Asynchronous equivalent of `apply()` builtin
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Asynchronous equivalent of `map()` builtin
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